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MAH3000
service manual
Maytag Corporation, Outer Tub & Spinner Assembly, 16008373-01
Models:
MAH3000
1
75
157
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Troubleshooting
Specification
Display Characteristics
Install
Code list
Electrical Schematics
End-Of-Cycle Signal Input
Timer Inputs
Wire Colors
Diagnostic
Page 75
Image 75
16008373-01
SECTION 7. OUTER TUB & SPINNER ASSEMBLY
7-10
© 1998 Maytag Corporation
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Contents
16010061
Service Manual
Customer Service
Washer
USE ONLY GENUINE MAYTAG APPROVED FACTORY REPLACEMENT COMPONENTS
SAFETY PRECAUTIONS
Maytag Appliances Sales Company 240 Edwards Street, S.E Cleveland, TN
INTRODUCTION
MAH3000
Models covered in this manual
GENERAL
C O N T E N T S
DIAGNOSTIC
SECTION
ASSEMBLY
CABINET ASSEMBLY
MACHINE
MOTOR
Displacement
OUTER
NOTE Proper installation is the responsibil- ity of the purchaser
PRE-INSTALLATION REQUIREMENTS
Checkpoints for proper installation
UNCRATING INSTRUCTIONS
INSTALLATION
CAUTION Do not cut or remove the ground- ing prong from this plug
GROUNDING POLARITY CHECKS
USE OF ADAPTERS IS NOT RECOMMENDED
SPECIFICATIONS
Prior To Series
WASHER CONTROLS
END-OF-CYCLE SIGNAL INPUT
INPUT DEFINITIONS
Series 17 & Later
DOOR LOCK SWITCH INPUT
See Push-To-Start/Line Relay Operation
TIMER INPUTS
Definitions
START/STOP INPUT
TIMER MOTOR OUTPUT
OUTPUT DEFINITIONS
END-OF-CYCLE SIGNAL OUTPUT
See Timer Input Charts
TORQUE OUTPUT
Vcc REFERENCE VOLTAGE OUTPUT
WATER VALVE OUTPUTS
BLEACH DISPENSE
CYCLE SEQUENCE DEFINITIONS
1-10
Timer Motor Output and Section 2 Timer Input Chart
1-11
MISCELLANEOUS Door Latch Switch Monitoring
Door Lock/Spin Control
Redistribution
STOPPING THE WASHER
Push-To-Start Relay Operation
1-12
STARTING THE WASHER
Diagnosis - Clothes Wet at End of Spin
CYCLE REVIEW
Main Wash Time/Total Cycle Time - Minutes See Notes
1-13
1-14
GENERAL COMPONENT EXPLODED VIEW
Part Number
SECTION 2. ELECTRICAL COMPONENTS & TESTING
ELECTRICAL TEST EQUIPMENT
Description
Water Valve Test
ELECTRICAL TESTS
G r o u n d e d C o m p o n e n t s
Voltage Checks
T C B
Timer & Console Switches
Timer Input Charts
SECTION 2. ELECTRICAL COMPONENTS & TESTING
t i m e r
Key 0 = Input Signal
Not Asserted
1= Input
Machine Control
M A C HIN E
DRIVE MOTOR
MOTOR CONTROL BOARD
Motor Harness Connector
Motor & Motor Control Test
Motor Phase Test
w i n d i n g s c h e c k S e e M o t o r W i n d i n g s C h e c k
Motor Windings Check
1 . Disconnect power to the washer prior to testing
1 . Disconnect power to the unit
RESULT/SOLUTION
Tachometer Circuit Diagnostics
PHASE
WIRE COLORS
Voltage Found
UNBALANCE CONTROL SYSTEM
Wire Checks
Tachometer
Testing the Strut Displacement Switch
Tub Displacement Switch
Strut Displacement Switch
Testing the Tub Displacement Switch 1 . Disconnect power to the unit
Testing the Inertial Unbalance Switch
Inertial Unbalance Switch
Cabinet Vibration Absorber
Cabinet Vibration Sensor
1 6 0 0 8 3 7 3 - 0
Runs For Five Seconds Then Shuts OFF
SECTION 3. TROUBLESHOOTING
Shuts OFF When Push-To-Start Button Re- leased
Start Line Relay Operation
Temperature Inputs
Tumbles Only
ContinuesTo Tumble After The Wash Cycle Is Finished
Third Rinse Cycle Is Always Cold
RF Radio Frequency Interference
Door Leaks
“Thumping” Noise In Spin
Ticking or Knocking Noise In Spin
T R O U B L E S H O O T I N G
SECTION 3. TROUBLESHOOTING 3
1 6 0 0 8 3 7 3
T R O U B L E S H O O T I N G
SECTION 3. TROUBLESHOOTING
1998 Maytag Corporation
1 6 0 0 8 3 7 3 - 0
T R O U B L E S H O O T I N G
SECTION 3. TROUBLESHOOTING 3
1998 Maytag Corporation
1 6 0 0 8 3 7 3 - 0
T R O U B L E S H O O T I N G
SECTION 3. TROUBLESHOOTING
1998 Maytag Corporation
1 6 0 0 8 3 7 3 - 0
3 - 1
SECTION 3. TROUBLESHOOTING 3 - 1
1998 Maytag Corporation
SECTION 3. TROUBLESHOOTING 3 - 1
indicators of the Quick Wash and Regular wash
Wattages
MISCELLANEOUS INFORMATION
Energy Usage
Washer
SECTION 4. CONSOLE
Disconnect power to the unit
R E M O V A L
VERTICAL SWITCHES Push Button
HORIZONTAL SWITCHES Push-to-Start
R E P L A C E M E N T
TIMER REMOVAL
1998 Maytag Corporation
R E M O V A L
SECTION 5. CABINET ASSEMBLY
DOOR ASSEMBLY & HINGES
DISASSEMBLY
Disconnect power to the unit
Cabinet Vibration Absorber
Door Latch Hoop
FRONT PANEL
TOP COVER
DOOR LOCK MECHANISM
1. Remove the front panel See Front Panel Removal
See Front Panel & Top Cover
FRONT SHROUD ASSEMBLY
REMOVAL
Troubleshooting
Hinge Removal
CABINET ASSEMBLY w/REAR ACCESS PANEL
SECTION 5. CABINET ASSEMBLY
FRONT REMOVAL
SECTION 6. WATER-CARRYING COMPONENTS
WATER VALVE
REAR REMOVAL
REMOVAL FROM OUTER TUB
WATER LEVEL PRESSURE SWITCH
AIR DOME HOSE
REMOVAL FROM CONSOLE
DISPENSER ASSEMBLY
REPLACEMENT/ROUTING
NOTE Using soap and water may lead to a potential leak
procedure is not followed properly
PUMP ASSEMBLY
FRONT WATER FLUME INJECTOR
5. Disconnect the hoses attached to the dis- penser assembly
7. Installation is complete
Pump Accessory Kit
CLEANING THE PUMP
1. Depress the locking tab on the face of the pump housing
5. Reverse the previous steps for replacement
DRAIN HOSE
1998 Maytag Corporation
Front Shroud Removal
DOOR BOOT
BAFFLES
SECTION 7. OUTER TUB & SPINNER ASSEMBLY
Shroud
OUTER TUB COVER
REPLACEMENT
2. Stretch the rear lip of the door boot onto the tub cover
SPIN BASKET ASSEMBLY w/BALANCE RING
Profile Washer Spinner Support Washer Locking Nut
DRIVE PULLEY
Figure7-6
1. Slide pulley on shaft
1. Reverse the previous steps
SPINNER TUB SUPPORT
3. Remove the drive pulley See Pulley Removal
7. Remove the shaft seal Figure
Figure7-9
SEAL SYSTEM
REMOVAL OF UPPER WEIGHT 1. Disconnect power to the unit
OUTER TUB ASSEMBLY
COUNTER WEIGHTS
BEARINGS
3. Remove the wires to the switch
STRUT ASSEMBLY
Strut Displacement Switch
INERTIAL UNBALANCE SWITCH
TUB DISPLACEMENT SWITCH
SECTION 7. OUTER TUB & SPINNER ASSEMBLY
R E M O V A L
SECTION 8. MOTOR DRIVE SYSTEM
DRIVE BELT
DRIVE MOTOR
Console Removal
MACHINE CONTROL
R e m o v a l
MOTOR CONTROL
SECTION 8 . MOTOR DRIVE SYSYTEM
SECTION
SECTION 9. ELECTRICAL SCHEMATICS & TIMER I N F O R M A T I O N
Prior to Series
ELECTRICAL SCHEMATICS
TIMER CHART - Prior to Series
ELECTRICAL SCHEMATIC - Series
TIMER CHART - Series
1998 Maytag Corporation
ELECTRICAL SCHEMATIC - Series
ELECTRICAL SCHEMATICS
SECTION
1998 Maytag Corporation
TIMER CHART - Series
ELECTRICAL SCHEMATICS
SECTION
1998 Maytag Corporation
N O T E S
WIRING INFORMATION
CONTENTS
SPECIFICATIONS
DISPENSER ASSEMBLY
SECTION 1. MAH4000/MAH5500A CONTROL FACIA SECTION 2. SPECIFICATIONS
Series 11 & Later
SECTION 3. BASIC MACHINE OPERATION
SECTION 4. WASHER CONTROLS OVERVIEW
Series 10 MAH4000 only
SECTION 5. CYCLE REVIEW
Cotton/Sturdy
Cycle Times
All Wash Time/Total Wash Cycle
Non-Max
Suds detection during stain cycle
Stain Cycle
General overview of Stain Cycle
The following is an example of a Stain Cycle
Component Identification & Location
SECTION 6. GENERAL COMPONENT - EXPLODED VIEW
SECTION 7. ELECTRICAL INFORMATION
SECTION 8. WATER CARRYING COMPONENTS
electrical power to the unit
vice repair procedures
1. Discontinue power and water to the
1. Disconnect power and water to the machine
OPERATION
See Figure
NOTE Indicator mark on hose for reinstallation
Removal 1. Disconnect power and water to the washer
3. Locate the rear mounting clip on the detergent hose in the access panel opening and slide the clip off the cabinet flange. See Figure
See Figure 8-11
Page
SECTION 9. WIRING INFORMATION
SERIES 10 - SCHEMATIC MAH4000 only
SERIES 11 MAH4000 and MAH5500
SERIES 10 - TIMER CHART MAH4000
SERIES 11 - TIMER CHART MAH4000 & MAH5500A
New Century Neptune Washer Service Manual Supplement
16008373-05
MAYTAG
Models covered in this manual supplement MAH5500B MAH7500A
DIAGNOSTIC/HELP CODE TABELS
SECTION 4. ELECTRICAL COMPONENTS & TESTING
TEARDOWN & WIRING INFORMATION
16010486
MAH7500 CONTROL FACIA
SPECIFICATIONS
SECTION 1. GENERAL INFORMATION
MAH5500B CONTROL FACIA
BASIC MACHINE OPERATION
General Flow Of A Complete Wash Cycle
Tumbling Time
CYCLE SEQUENCES
Wash Time Tumble
Wash Selections
Rinse
INPUT WATER TEMPERATURE
Extra Heavy, Quick
Selected
BASIC CONTROL BOARD PHILOSOPHY FOR BOTH WASHERS
Features of MAH5500B LED Washer
Features of MAH7500 LCD Washer
SECTION 2. WASHER CONTROLS OVERVIEW
FABRIC MODE
SIGNAL MODE
USER INTERFACE
SELECTIONS LED Washer
Door Locked LED
DISPLAY CHARACTERISTICS
OPTIONS MODE
Page 1-3 Extra Rinse Table
TEMPERATURE SENSOR INPUT
PRESSURE SWITCH INPUT
DOOR LOCK SWITCH INPUT
INPUT MODIFICATIONS DEFINED
TACH INPUT
Diagnostics
OUTPUT MODIFICATIONS DEFINED
START/PAUSE INPUT
CYCLE SEQUENCE DEFINITIONS
Main Wash Target Temperatures
WATER VALVE OUTPUTS
BLEACH DISPENSE
REDISTRIBUTION
SUDS DETECTION
MISCELLANEOUS
DOOR LOCK PHILOSOPHY
DOOR LOCK OPERATION
ADVERTISING MODE
POWER LOSS/FAILURE
SPECIAL FEATURES
MAH7500A
2-10
SERVICE MODE
LED Washer
LCD Washer
SPECIAL TESTS
Accessing Service Mode
SERVICE MODE TABLE LED Washer
LED WASHER
Displayed
QUICK SERVICE CYCLE
2-12
Speed Range
BOARD OUTPUT TEST
Accessing The Help Codes
BOARD INPUT TEST
HELP CODES
Clearing Diagnostic Code List
DIAGNOSTIC CODES
Section 5 DIAGNOSTIC/HELP CODE TABLES
Accessing Diagnostic Codes
User Interface Tests
ACCESSING SERVICE MODE
Service Tests
LCD WASHER
Service Cycle
During a cycle
2-16
2-17
Note This selection is valid only if a cycle is running
SYSTEM CHECK
DIAGNOSTIC/HELP CODES
exit diagnostic/help codes Return to
Clear diagnostic codes Clear the entire list of diagnostic codes
Trigger
Section 3 DIAGNOSTIC/HELP CODE TABLES
HELP CODES LISTING
Help
Action to be Taken
Help
Description
Trigger
Action to be Taken
Trigger
DIAGNOSTIC CODES LISTING
Diag
Description
Diag
Action to be Taken
Component Identification & Location
GENERAL COMPONENT - EXPLODED VIEW
Glossary of Terms
Spin Speed - This is the speed of the washer spinner during extraction
3-10
Water Valve Test
SECTION 4. ELECTRICAL COMPONENTS & TESTING
ELECTRICAL TESTS
Grounded Components
Board Output Test
Machine Control
INPUT/OUTPUT VOLTAGES LED Washer
INPUT/OUTPUT VOLTAGES LCD Washer
On the MAH5500B washer you can perform the Membrane Pad Check with the control console. See Section 2 Accessing Service Mode Membrane Pad Check
Membrane Pad Checks
Drip Shield Removal
Motor Control Access
DRIVE MOTOR
MOTOR CONTROL BOARD
Motor & Motor Control Test
Motor Phases
Motor Drive System Test
Machine Control Board Output Test
Heater Will Not Turn On
HEATER ASSEMBLY
Main Wash Tempering
Thermistor Temperature Chart
Heating Targets Using
User Selections
LCD MODEL
SECTION 5. TEARDOWN & WIRING INFORMATION
CONSOLE REMOVAL
MICROPROCESSOR BOARD REMOVAL
CABINET ASSEMBLY
CONSOLE COVER PLUG
DOOR LATCH HOOP
DOOR LOCK MECHANISM
WATER SYSTEM COMPONENTS
REAR ACCESS PANEL
Removal 1. Discontinue power and water to the machine
PRESSURE SWITCH
REMOVAL
PUMP ASSEMBLY
HEATER ASSEMBLY
REINSTALLATION
SUMP COVER
Thermistor Removal
MAH5500B
WIRING INFORMATION
MAH7500
Maytag Appliances Sales Company
Customer Service 240 Edwards Street, S.E Cleveland, Tennessee
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